DE69736795D1 - Method for controlling the exhaust system of an internal combustion engine - Google Patents

Method for controlling the exhaust system of an internal combustion engine

Info

Publication number
DE69736795D1
DE69736795D1 DE69736795T DE69736795T DE69736795D1 DE 69736795 D1 DE69736795 D1 DE 69736795D1 DE 69736795 T DE69736795 T DE 69736795T DE 69736795 T DE69736795 T DE 69736795T DE 69736795 D1 DE69736795 D1 DE 69736795D1
Authority
DE
Germany
Prior art keywords
controlling
combustion engine
internal combustion
exhaust system
exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69736795T
Other languages
German (de)
Other versions
DE69736795T2 (en
Inventor
Nobuhide Kato
Hiroshi Kurachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of DE69736795D1 publication Critical patent/DE69736795D1/en
Application granted granted Critical
Publication of DE69736795T2 publication Critical patent/DE69736795T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/4175—Calibrating or checking the analyser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/1441—Plural sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of catalytic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/36—Control for minimising NOx emissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
DE69736795T 1996-06-21 1997-06-20 Method for controlling the exhaust system of an internal combustion engine Expired - Lifetime DE69736795T2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP16121896 1996-06-21
JP16121896 1996-06-21
JP13902197 1997-05-28
JP9139021A JPH1068346A (en) 1996-06-21 1997-05-28 Control method for engine exhaust gas system

Publications (2)

Publication Number Publication Date
DE69736795D1 true DE69736795D1 (en) 2006-11-23
DE69736795T2 DE69736795T2 (en) 2007-08-09

Family

ID=26471930

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69736795T Expired - Lifetime DE69736795T2 (en) 1996-06-21 1997-06-20 Method for controlling the exhaust system of an internal combustion engine
DE69737043T Expired - Lifetime DE69737043T2 (en) 1996-06-21 1997-06-20 Method for controlling the exhaust system of an engine

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69737043T Expired - Lifetime DE69737043T2 (en) 1996-06-21 1997-06-20 Method for controlling the exhaust system of an engine

Country Status (4)

Country Link
US (1) US6012282A (en)
EP (2) EP1302648B1 (en)
JP (1) JPH1068346A (en)
DE (2) DE69736795T2 (en)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69815256T2 (en) * 1997-10-14 2004-05-06 NGK Spark Plug Co., Ltd., Nagoya Method and device for determining the operating state of a NOx occlusion catalyst
JP3456401B2 (en) * 1998-02-12 2003-10-14 日産自動車株式会社 Exhaust gas purification device for internal combustion engine
DE19819204C1 (en) * 1998-04-29 1999-09-30 Siemens Ag Trimming two-point exhaust gas sensor indication, to compensate behavioral shift due to aging and poisoning
DE19828928C2 (en) * 1998-06-29 2003-04-17 Siemens Ag Method for monitoring the exhaust gas purification system of an internal combustion engine
DE19830829C1 (en) * 1998-07-09 1999-04-08 Siemens Ag NOX storage catalyst regeneration process
DE19852244C1 (en) * 1998-11-12 1999-12-30 Siemens Ag Controlling NOx emission in exhaust gases passing through three-way catalyst followed by lambda sensor
JP3607976B2 (en) 1999-03-29 2005-01-05 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
EP1196681B1 (en) * 1999-05-19 2003-09-17 Robert Bosch Gmbh Method for controlling a rich/lean combustion mixture in a defined manner
JP2000352307A (en) * 1999-06-10 2000-12-19 Hitachi Ltd Engine emission control system
DE19931321A1 (en) * 1999-07-07 2001-01-18 Siemens Ag Method for checking a three-way catalytic converter of an internal combustion engine
DE19953601C2 (en) * 1999-11-08 2002-07-11 Siemens Ag Method for checking an exhaust gas catalytic converter of an internal combustion engine
JP3688533B2 (en) * 1999-11-12 2005-08-31 本田技研工業株式会社 Degradation state evaluation method of exhaust gas purification catalyst device
JP3782269B2 (en) * 1999-11-12 2006-06-07 本田技研工業株式会社 Air-fuel ratio control device for internal combustion engine
US6487850B1 (en) * 2000-03-17 2002-12-03 Ford Global Technologies, Inc. Method for improved engine control
US6360530B1 (en) 2000-03-17 2002-03-26 Ford Global Technologies, Inc. Method and apparatus for measuring lean-burn engine emissions
US6810659B1 (en) * 2000-03-17 2004-11-02 Ford Global Technologies, Llc Method for determining emission control system operability
US6860100B1 (en) * 2000-03-17 2005-03-01 Ford Global Technologies, Llc Degradation detection method for an engine having a NOx sensor
US6434930B1 (en) * 2000-03-17 2002-08-20 Ford Global Technologies, Inc. Method and apparatus for controlling lean operation of an internal combustion engine
US6427437B1 (en) * 2000-03-17 2002-08-06 Ford Global Technologies, Inc. Method for improved performance of an engine emission control system
DE10014239A1 (en) * 2000-03-22 2001-10-31 Volkswagen Ag Monitoring the function of a three-way catalyst in the exhaust gas channel of IC engine comprises acquiring the size of the nitrogen oxides signal within the lambda region, and comparing with threshold values
US6347512B1 (en) * 2000-04-28 2002-02-19 Ford Global Technologies, Inc. Method and system for controlling a lean NOx trap purge cycle
US6363715B1 (en) * 2000-05-02 2002-04-02 Ford Global Technologies, Inc. Air/fuel ratio control responsive to catalyst window locator
US6360159B1 (en) * 2000-06-07 2002-03-19 Cummins, Inc. Emission control in an automotive engine
US6427439B1 (en) * 2000-07-13 2002-08-06 Ford Global Technologies, Inc. Method and system for NOx reduction
US6389803B1 (en) * 2000-08-02 2002-05-21 Ford Global Technologies, Inc. Emission control for improved vehicle performance
US6849239B2 (en) * 2000-10-16 2005-02-01 E. I. Du Pont De Nemours And Company Method and apparatus for analyzing mixtures of gases
KR101127378B1 (en) 2000-10-16 2012-03-30 이 아이 듀폰 디 네모아 앤드 캄파니 Method and apparatus for analyzing mixtures of gases
EP1351762B1 (en) 2000-10-16 2006-11-29 E.I. Du Pont De Nemours And Company Infrared thermographic screening technique for semiconductor-based chemical sensors
US20020192293A1 (en) * 2001-04-06 2002-12-19 Gadiraju Srinivas R. Method for manufacture of extended release dosage form
US7765794B2 (en) * 2001-05-04 2010-08-03 Nco2 Company Llc Method and system for obtaining exhaust gas for use in augmenting crude oil production
US6712604B2 (en) * 2001-06-15 2004-03-30 Honeywell International Inc. Cautious optimization strategy for emission reduction
US6467259B1 (en) 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine
US6487853B1 (en) 2001-06-19 2002-12-03 Ford Global Technologies. Inc. Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor
US6453666B1 (en) 2001-06-19 2002-09-24 Ford Global Technologies, Inc. Method and system for reducing vehicle tailpipe emissions when operating lean
US6553754B2 (en) 2001-06-19 2003-04-29 Ford Global Technologies, Inc. Method and system for controlling an emission control device based on depletion of device storage capacity
US6502387B1 (en) 2001-06-19 2003-01-07 Ford Global Technologies, Inc. Method and system for controlling storage and release of exhaust gas constituents in an emission control device
US6604504B2 (en) 2001-06-19 2003-08-12 Ford Global Technologies, Llc Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine
US6539706B2 (en) 2001-06-19 2003-04-01 Ford Global Technologies, Inc. Method and system for preconditioning an emission control device for operation about stoichiometry
US6594985B2 (en) * 2001-06-19 2003-07-22 Ford Global Technologies, Inc. Exhaust gas aftertreatment device efficiency estimation
US6691020B2 (en) 2001-06-19 2004-02-10 Ford Global Technologies, Llc Method and system for optimizing purge of exhaust gas constituent stored in an emission control device
US6463733B1 (en) 2001-06-19 2002-10-15 Ford Global Technologies, Inc. Method and system for optimizing open-loop fill and purge times for an emission control device
US6650991B2 (en) 2001-06-19 2003-11-18 Ford Global Technologies, Llc Closed-loop method and system for purging a vehicle emission control
US6546718B2 (en) 2001-06-19 2003-04-15 Ford Global Technologies, Inc. Method and system for reducing vehicle emissions using a sensor downstream of an emission control device
US6615577B2 (en) 2001-06-19 2003-09-09 Ford Global Technologies, Llc Method and system for controlling a regeneration cycle of an emission control device
US6694244B2 (en) 2001-06-19 2004-02-17 Ford Global Technologies, Llc Method for quantifying oxygen stored in a vehicle emission control device
US6490860B1 (en) 2001-06-19 2002-12-10 Ford Global Technologies, Inc. Open-loop method and system for controlling the storage and release cycles of an emission control device
US6453663B1 (en) 2001-08-16 2002-09-24 Ford Global Technologies, Inc NOx sensor monitoring
DE10211781B4 (en) * 2002-03-16 2004-08-12 Innecken Elektrotechnik Gmbh & Co. Kg Method and device for monitoring and regulating the operation of an internal combustion engine with reduced NOx emissions
US20040126286A1 (en) * 2002-06-19 2004-07-01 Deruyter John C. Method and apparatus for reducing a nitrogen oxide
US7575931B2 (en) * 2002-06-19 2009-08-18 E.I. Du Pont De Nemours And Company Method and apparatus for reducing a nitrogen oxide, and control thereof
US7134273B2 (en) 2002-09-04 2006-11-14 Ford Global Technologies, Llc Exhaust emission control and diagnostics
US6701707B1 (en) 2002-09-04 2004-03-09 Ford Global Technologies, Llc Exhaust emission diagnostics
JP3912294B2 (en) * 2003-02-19 2007-05-09 トヨタ自動車株式会社 Exhaust gas purification method and exhaust gas purification apparatus for internal combustion engine
US7460958B2 (en) * 2004-10-07 2008-12-02 E.I. Du Pont De Nemours And Company Computer-implemented system and method for analyzing mixtures of gases
US8236246B2 (en) * 2004-10-07 2012-08-07 E I Du Pont De Nemours And Company Gas sensitive apparatus
US7644576B2 (en) * 2005-04-25 2010-01-12 Ngk Spark Plug Co., Ltd. Sensor control device
JP4779721B2 (en) * 2006-03-10 2011-09-28 株式会社日立製作所 Engine system
US7255098B1 (en) 2006-04-27 2007-08-14 Caterpillar Inc. Engine emissions control system
JP4665923B2 (en) 2007-03-13 2011-04-06 トヨタ自動車株式会社 Catalyst deterioration judgment device
DE112007003414B4 (en) * 2007-04-26 2020-02-06 FEV Europe GmbH Regulation of a motor vehicle internal combustion engine
JP4492669B2 (en) * 2007-10-24 2010-06-30 トヨタ自動車株式会社 Air-fuel ratio control device for internal combustion engine
US8887490B2 (en) * 2013-02-06 2014-11-18 General Electric Company Rich burn internal combustion engine catalyst control
JP6128041B2 (en) * 2014-03-31 2017-05-17 トヨタ自動車株式会社 Internal combustion engine control system
JP6144652B2 (en) * 2014-07-23 2017-06-07 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
CA3016160C (en) * 2016-03-24 2021-01-26 Kerdea Technologies, Inc. Resistive based nox sensing method and apparatus
JP2020070769A (en) 2018-11-01 2020-05-07 マツダ株式会社 Control device for engine
JP2020070770A (en) 2018-11-01 2020-05-07 マツダ株式会社 Control device for engine
JP7137146B2 (en) 2019-01-28 2022-09-14 マツダ株式会社 engine controller
CN113804825A (en) * 2020-06-12 2021-12-17 卓品智能科技无锡有限公司 Multichannel parallel automatic calibration method and system for vehicle-mounted nitrogen-oxygen sensor

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57168040A (en) * 1981-04-10 1982-10-16 Nippon Kokan Kk <Nkk> Method to determine combustion condition of diesel engine
JPS5951150A (en) * 1982-09-16 1984-03-24 Nissan Motor Co Ltd Control of idle revolution speed of internal-combustion engine
JPH0672861B2 (en) * 1986-08-04 1994-09-14 日本碍子株式会社 NOx sensor
US4915080A (en) * 1987-09-22 1990-04-10 Japan Electronic Control Systems Co., Ltd. Electronic air-fuel ratio control apparatus in internal combustion engine
JP2636883B2 (en) * 1988-04-30 1997-07-30 日本碍子株式会社 NOx concentration measuring device
JPH02125941A (en) * 1988-11-05 1990-05-14 Nippon Denso Co Ltd Air-fuel ratio control device of engine
JPH0715272B2 (en) * 1989-04-28 1995-02-22 日産自動車株式会社 Air-fuel ratio controller for internal combustion engine
JP2501643B2 (en) * 1989-08-15 1996-05-29 日産自動車株式会社 Catalyst deterioration detection device
JP3018040B2 (en) * 1990-05-11 2000-03-13 セイコー精機株式会社 Hard disk inspection device
JP2943261B2 (en) * 1990-07-06 1999-08-30 石川島播磨重工業株式会社 Method of forming rod-shaped part by FRP
DE4112479C2 (en) * 1991-04-17 2002-06-06 Bosch Gmbh Robert Method and device for determining the aging condition of a catalyst
JP3104291B2 (en) * 1991-06-04 2000-10-30 三菱自動車工業株式会社 NOX sensor
US5426934A (en) * 1993-02-10 1995-06-27 Hitachi America, Ltd. Engine and emission monitoring and control system utilizing gas sensors
US5444974A (en) * 1993-07-09 1995-08-29 General Motors Corporation On-board automotive exhaust catalyst monitoring with a calorimetric sensor
US5397442A (en) * 1994-03-09 1995-03-14 Gas Research Institute Sensor and method for accurately measuring concentrations of oxide compounds in gas mixtures
JP2885336B2 (en) * 1994-04-21 1999-04-19 日本碍子株式会社 Method and apparatus for measuring NOx concentration in gas to be measured
US5452576A (en) * 1994-08-09 1995-09-26 Ford Motor Company Air/fuel control with on-board emission measurement

Also Published As

Publication number Publication date
EP0814249B1 (en) 2006-10-11
EP1302648A2 (en) 2003-04-16
EP0814249A2 (en) 1997-12-29
US6012282A (en) 2000-01-11
DE69737043D1 (en) 2007-01-11
JPH1068346A (en) 1998-03-10
EP1302648A3 (en) 2005-04-27
EP0814249A3 (en) 2000-02-23
DE69737043T2 (en) 2007-06-21
EP1302648B1 (en) 2006-11-29
DE69736795T2 (en) 2007-08-09

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